I've had a set of Pebeo Setacolour paints for years, but have never got the chance to use them (usually because of a lack of dry sunny days). However, I finally got them out today and gave sun-printing a go.
Started out with 3 squares of fabric - then got carried away and made loads more. I used old keys, buttons, ferns, alphabet stencils, net etc. The heavier items seemed to work better i.e. keys, buttons, stencils and left a stronger effects.